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Cummins 275 kVA Silent Diesel Generator Price & Specs India

The Cummins C275D6 is a heavy-duty 275 kVA silent diesel generator designed to tackle the most demanding power requirements in India. As regional DISCOMs like MSEDCL, BESCOM, and TNEB struggle with peak summer demand and scheduled load shedding in Tier-2 and Tier-3 cities, this industrial-grade DG set ensures your operations never skip a beat. Powered by the legendary Cummins QS9-G3 engine, a 4-cycle turbocharged powerhouse with 8.9L displacement, it delivers a rated 275 kVA (approximately 220 kW at 0.8 Power Factor) with a maximum surge capacity of 300 kVA. For Indian businesses, the three-phase output is ideal for heavy machinery, centralized HVAC systems, and large-scale manufacturing units that require stable voltage. Safety is paramount; this unit includes earth leakage protection, over-temperature sensors, and a high-grade 75 dB silent acoustic canopy that meets CPCB-style noise pollution norms for residential and commercial zones. The 300-liter fuel tank allows for roughly 8.5 hours of continuous runtime at full load (35.2 L/hr), making it a reliable partner during extended grid failures or summer peak failures. Choosing a Cummins generator means investing in global engineering backed by an extensive service network across India, from Pune to Gurgaon. Whether you are managing a high-rise residential complex requiring lift backup or a hospital where a 10-second power gap is not an option, the C275D6’s auto-start functionality and Class H insulation provide the ultimate peace of mind. This unit bridges the gap where traditional UPS systems fail, providing continuous, high-efficiency power for industrial-scale loads.

Quick Answer

Yes, given the frequent grid instability and 'voltage sag' issues in many Indian states, the Cummins C275D6 is a high-yield investment. The cost of a single day of lost production in a factory often exceeds the annual maintenance cost of the DG set, making this reliable standby solution essential for business continuity.

Emergency backup for a 50-bed hospital in Maharashtra during monsoon grid failures
Prime power source for a construction project in a remote area of Rajasthan
Seamless power handover for a cold storage facility in Uttar Pradesh to prevent spoilage

In the Indian market, a silent canopy generator is significantly more valuable than an open-frame model due to strict CPCB noise regulations and the high density of residential-commercial mixed zones. The silent canopy not only ensures compliance but also protects the engine from tropical dust and heavy monsoon rains, extending the unit's lifespan.

✓ Who Should Buy

  • This unit is primarily purchased by industrial factory owners, large-scale medical hospitals, real estate developers for high-rise apartment backup, and data centers. In India, it is also popular with large shopping malls and educational campuses that cannot afford downtime during DISCOM load shedding.

✕ Who Should Avoid

  • Spaces or usage requirements exceeding residential rated capacity.
  • Installations prioritizing minimum capital expenditure over high-efficiency performance.
  • Unstable grid conditions exceeding the functional threshold of Standard power cycle.
  • Environments incompatible with generators physical and thermal dissipation specs.
Product Overview
The Cummins C275D6 is a powerhouse of reliability, engineered to solve the chronic power-cut issues faced by Indian industries. In regions where BESCOM or MSEDCL outages disrupt production, this 275 kVA diesel generator serves as a critical bridge. Featuring a turbocharged QS9-G3 engine and a three-phase output, it provides seamless energy for large-scale operations. Wrapped in a 75 dB silent canopy, it adheres to strict urban noise norms while delivering high-efficiency performance (92%) and a massive 300 kVA peak capacity. With an 8.9L displacement engine and an electronic governor, it ensures precise power delivery even under fluctuating loads.

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Engineering Analysis
The Cummins C275D6 utilizes a 6-cylinder QS9-G3 engine with an 8.9L displacement, optimized for high torque and rapid response to load changes. The electronic governor maintains a steady 1800 RPM, ensuring frequency stability essential for sensitive electronics in server rooms or medical clinics. The brushless alternator features Class H insulation and a copper winding for maximum conductivity and thermal resistance. With an efficiency rating of 92%, the unit minimizes energy loss, while the integrated AVR (Automatic Voltage Regulator) keeps the output voltage stable at 480V. The system is housed in a corrosion-resistant steel silent canopy, designed for outdoor installation in harsh Indian weather conditions.

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